Re: Fwd: [PATCH, GCC, Vect] Fix costing for vector shifts

Hi Christophe On 10/12/2019 09:01, Christophe Lyon wrote: > Hi, > > On Mon, 9 Dec 2019 at 11:23, Sudakshina Das wrote: >> >> Hi Jeff >> >> On 07/12/2019 17:44, Jeff Law wrote: >>> On Fri, 2019-12-06 at 14:05 +, Sudakshina Das wrote: Hi While looking at the vectorization for fo

Re: Fwd: [PATCH, GCC, Vect] Fix costing for vector shifts

Hi, On Mon, 9 Dec 2019 at 11:23, Sudakshina Das wrote: > > Hi Jeff > > On 07/12/2019 17:44, Jeff Law wrote: > > On Fri, 2019-12-06 at 14:05 +, Sudakshina Das wrote: > >> Hi > >> > >> While looking at the vectorization for following example, we > >> realized > >> that even though vectorizable_

Re: Fwd: [PATCH, GCC, Vect] Fix costing for vector shifts

Hi Jeff On 07/12/2019 17:44, Jeff Law wrote: > On Fri, 2019-12-06 at 14:05 +, Sudakshina Das wrote: >> Hi >> >> While looking at the vectorization for following example, we >> realized >> that even though vectorizable_shift function was distinguishing >> vector >> shifted by vector from vector

Re: Fwd: [PATCH, GCC, Vect] Fix costing for vector shifts

On Fri, 2019-12-06 at 14:05 +, Sudakshina Das wrote: > Hi > > While looking at the vectorization for following example, we > realized > that even though vectorizable_shift function was distinguishing > vector > shifted by vector from vector shifted by scalar, while modeling the > cost > it

Fwd: [PATCH, GCC, Vect] Fix costing for vector shifts

Hi While looking at the vectorization for following example, we realized that even though vectorizable_shift function was distinguishing vector shifted by vector from vector shifted by scalar, while modeling the cost it would always add the cost of building a vector constant despite not needin